Is it your sister’s birthday coming up? Do you want to make her laugh out loud with your birthday wish? Let’s be honest, sisters are awesome, and they deserve a birthday wish that’s as fun and quirky as they are. On her special day, you can make her smile with a birthday wish that’s as funny and unique as your bond.
Whether she’s older, younger, or maybe even your twin, these hilarious birthday quotes are sure to bring a big grin to her face in a humorous way. Funniest birthday messages will make her day unforgettable and light up her birthday.
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Funny Happy Birthday Card Messages
I wish you all the happiness in the world in the coming year. May your birthday be amazingly awesome and your hangover be mercifully minor. I love you so much!
Happy Birthday, Buttmunch! There’s no person I’d rather have as my sister. Thanks for being that annoying little sister that never leaves me alone.
You may be the younger one, but I’ll always be the best dressed sister. Happy birthday!
Happy birthday, sis! Remember, age is just a number – and in your case, a really big one!
This is your yearly reminder that I know all your secrets, so I deserve the biggest slice of cake!
It’s never too late to be what you want to be… unless you want to be younger… then you’re screwed! Hope all your birthday wishes come true – except the illegal ones of course!
Me being your sister is really the only gift you need. Happy birthday!
You’re not just getting older, you’re getting better… at telling dad jokes. Happy birthday, sis!
I know I’m the favorite child, but we can pretend you are today on your birthday!
No matter how old you get, I’ll always be younger! HA! Happy Birthday, ya old bag!
We may need an extinguisher to put out all those candles! HBD, sis!
To a special sister, I love you enough to give it a good thinking through if you ever needed my kidney.
Happy birthday to my former wombmate.
Have a fantastic birthday. From your much, much, much younger sibling. Bye, loser!
You may be the older sister, but you know who’s the boss! Happy birthday, sissy!
Well… you made it to the point where the younger generation doesn’t understand your pop culture references and ‘cool’ slang anymore. Make sure you have a few Tums before you dive into your cake and have a sleeping pill on hand for when the party wears you out. Happy Birthday!
No matter how old I get, I’ll always be younger than you! Happy birthday, sister.
To a sister who is just as awesome as she was last year. So not very awesome then.
Don’t stress about getting old. That already happened years ago. Happy birthday!
I’m not saying you’re old, but if you were milk I’d sniff you. Hope your birthday doesn’t stink!
I’m really just here for the cake. Oh yeah, happy birthday!
Congratulations on making it another year without getting eaten by a bear! Happy birthday!
Your birthday gift this year is the gift of my presence. Happy birthday, sister!
I’m sorry I called you old. I really thought you knew… Happy Birthday?
I guess your birthday wish came true because you have me for a sister!
Happy Birthday Sis, I’m sorry I can’t be there today but we all know I’d have upstaged you.
Happy birthday to my favorite sibling. Yes, I know there are only two of us!
Everyone will tell you that you look half your age. But as your sibling, it is my responsibility to tell you the truth – you’re not getting any younger! Happy Birthday!
For your birthday, I got you a fruit salad. With grapes, a lot of fermented grapes!
Happy birthday, sis! If you were a wine, you’d be getting better with age – but let’s face it, you’re more like a cheap beer.
Your birthday wishes as a kid must have come true since you have me for a sibling now.
Sorry you got old. Happy birthday anyway…
You’re the jelly to my roll. Happy birthday, sister!
Our parents learned from their mistakes after raising you, but at least you have an awesome sibling!
Happy Birthday, sister! It’s official – you are far too old to drop it like it’s hot, so please just sit down like it’s cold!
Don’t forget who knows all your secrets. Give me the biggest slice of cake or I’m spilling the beans! Happy birthday, sister.
Funny Quotes For Sister’s Birthday
Here’s to another year of pretending we like each other! Happy birthday, sis!
I got the best birthday present ever: Me!
Alternative Fact: You’re still young. Happy Birthday. RIP youth.
My presence is the only present you need. HBD!
God, imagine hogging all the attention just because you were born today. Jokes, you get it from me. Love you Sis.
Someone needs to call the fire department! There are way too many candles burning right now!
Listen, it may be time to start lying about your age. Just saying… Happy Birthday ya oldie!
Happy birthday to my favorite sister! Just kidding, you’re my only sister.
Don’t worry about the past or future, but the present…I forgot about that one. Happy birthday, though!
Wishing mom and dad’s favorite child a great day. Oh, and I hope you have a good day too.
Happy Birthday to my sister! I was going to get you a really funny card, but then I remembered how old you were and I was worried you might pee yourself…
Happy birthday to the person who always steals my clothes. For my birthday, I’d like them back!
Thanks for being born so far away from my birthday so I don’t have to share the spotlight.
This year I’ll let you in on a little family secret: Mom and Dad never bake your birthday cake, it’s store-bought.
Happy birthday, sis! Don’t worry, I’m not counting the candles on your cake – I don’t want to start a fire!
Me being your sibling really is the only gift you need for all of eternity. On that note, I forgot a present. Happy birthday!
Welcome to old age! I hope you like ibuprofen. Happy Birthday!
Happy birthday, sis! You may be getting older, but at least you’re not getting any wiser.
Happy Birthday Sis, it’s been hard putting up with you all these years.
Your joints may be popping, but hopefully so is your birthday!
Congratulations on another year of being my sister. It’s a tough job, but someone’s gotta do it. Happy birthday!
I smell old people! Oh wait, that’s you. Happy Birthday, oldie.
Happy birthday to the only person who truly understands how crazy our family is!
Happy Birthday to a special sister. You’re really pretty…good at being the less attractive sibling. Keep it up!
You know you’re past the age of being cool when even the grocery store music is a generation younger than you. Enjoy creaky joints that can predict the weather and falling asleep in chairs randomly. Ha ha but seriously, Happy Birthday!
Happy birthday, sis! Remember, you’re not getting older – you’re just increasing your value as a vintage item.
Happy birthday to the girl who thinks she’s the funny one in the family. Now that’s funny.
Happy Birthday! Don’t think of it as getting older – think of it as getting closer to qualifying for amazing senior discounts!
Here’s to another year of being able to blame your bad behavior on your age! Happy birthday, sis!
I couldn’t think of anybody more deserving of a special day, other than perhaps me.
One minute you’re young and fun, the next, you’re turning down the car stereo to see better. Happens to all of us. Still try to enjoy your birthday though!
Happy birthday, sis! I hope your day is as fabulous as your hair.
I’m just here for the cake, but happy birthday!
Hooray! You’re one year closer to dying. Happy Birthday, I guess?
Happy birthday to the person who knows all my secrets and still loves me anyway – my sister!
Funny Sister Birthday Wishes
Happy Birthday to my sister. You’re growing on me…like a horrible rash.
Sis, Being related to me is the only gift you need but I got you this card anyway. Happy Birthday!
Happy birthday, sis! Don’t worry about getting older, just think of it as becoming a classic.
Hey, want to do me a solid and cut me the biggest slice of cake? Thanks, sis.
I mean, you already have me… so I don’t know what else you could possibly wish for, but knock yourself out! Happy Birthday!
I hope your day is as special as you are — crazy and unique!
To my older sister on her Birthday. There’s not that many people who still look beautiful at your age. So at least you’re not alone.
Happy Birthday to a sister who has the best sister ever! You’re so lucky! Happy Birthday!
Happy birthday to my sister, who’s always been my favorite person to blame when I get in trouble.
I’m telling everyone that you said my gift was the best present you’ve ever received. Figured I’d give you a warning.
Sister, Now that we’re older, I’m glad you’ve finally realized how awesome I am (I guess you’re awesome-ish too). Happy Birthday!
Happy birthday, sis! You’re not just a year older, you’re also a year closer to becoming a crazy cat lady.
You can have this birthday card for a few minutes then I need to borrow it like absolutely everything else that you own.
Happy Birthday to a sister who is smart, talented and fabulous! I love that we’re so much alike!
You know you’re getting old when the candles on your cake cost more than the cake itself. Happy birthday, sis!
Sisters are so amazing. Well, at least yours is! Happy Birthday!
Happy birthday, sis! Here’s to another year of being the second coolest member of our family (after me, of course).
I don’t mind that you’re queen for the day it suits you. Grey hair, wrinkles, looks a hundred years old.
Happy birthday to the most amazing sister ever! I am glad you’re my sister because, let’s face it, most people couldn’t handle your crazy ass. Love you my awesome sister!
Happy birthday, sis! May your day be as bright and colorful as the highlighter you used to color your hair in the 90s.
This is the perfect day to thank me for remembering your birthday. You’re welcome.
Happy birthday to my sister, who’s always been my favorite person to argue with (even though I’m always right).
Happy Birthday sis. As we age I’m so glad you’ll always be the older sister.
Happy Birthday to my closest compatible organ donor.
Happy birthday, sis! Here’s to another year of being the person I can always count on to embarrass me in public.
Thanks for being born! It’s a great excuse for us to drink prosecco and eat cake. Happy Birthday!
Happy Birthday to the second favorite child.
My sister is the best and most special sister… because we’re the same size and so I have double the wardrobe! Have a lovely birthday, sister!
To my little sister, I’d say your birthday outfit looks original but you’re probably wearing all of my clothes.
The best part of being your sister is having a best friend that is almost as pretty as me. Best wishes on your birthday!
Happy birthday, sis! Here’s to another year of being the person I can always count on to talk too loudly in public.
You possess all of my good qualities but better, if such a thing is even possible! Happy birthday, sister!
Happy Birthday Sister. I’ve borrowed a bit of everything from all your presents as payback.
You were the best little sister I could have asked for, especially because I could always get away with blaming everything on you! HAHAHA! Sorry, not sorry! Happy birthday, sister. Love you lots – no, seriously!
